期刊
CHEMICAL & PHARMACEUTICAL BULLETIN
卷 52, 期 6, 页码 700-703出版社
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.52.700
关键词
zinc; fluorescence; boron dipyrromethene (BODIPY); photoinduced electron transfer; N,N-bis(2-pyridylmethyl)ethylenediamine
ZnAB has the combined structure of N,N'-bis(2-pyridylmethyl)ethylenediamine as a specific chelater for Zn2+ and 1,3,5,7-tetramethyl-8-phenyl-boron dipyrromethene as a fluorophore. Complexation of ZnAB with Zn2+ produces a remarkable enhancement of fluorescence intensity. ZnAB has the advantages of less sensitivity to solvent polarity and pH than fluorescein-based Zn2+ probes. Furthermore, it is not influenced by other cations, such as Na+, K+, Ca2+, and Mg2+, which exist at high concentrations under physiological conditions, even at 2.5 mm. The results show that ZnAB is a Zn2+ probe suitable for biological applications.
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